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Journal of Engineering and Applied Sciences
Year: 2018  |  Volume: 13  |  Issue: 5 SI  |  Page No.: 4570 - 4579

Soft Start Improvement of Induction Motor Using Photovoltaic Fed Switched Inductor Quasi-Z Source H-Bridge Multilevel Inverter

R. Murugesan and M. Manikandan    

Abstract: The general configuration of induction motor is generating a high initial current and high torque while it is undergone heavy load operation. The torque and current problems is depends on mechanical internal and external structure and control arrangement. In order to control of initial torque and motor performance via. current control an adequate circuit and control schemes are required to obtain desired motor performance. This study is proposes switched inductor based quasi Z source circuit is applied on dual source simplified H-bridge multilevel inverter for high step up PV power generation and controlled torque as well as stator current. Voltage control scheme is introduces to control of H-bridge circuit using reference voltage generation for 3 phase proposed circuit. The present circuit is used to control of over voltage and over current in proposed topology. This control loops is not required any complex control, here, we control and generate reference signals using direct sensing of DC-link voltage circuit. Dual power supply based switched inductor quasi Z source on simplified H-bridge multilevel inverter is controlled by single carrier multi-reference Phase Opposition and Disposition (POD) pulse width modulation. The 0.5 Hp induction motor is undergone for this circuit to verify about soft start and torque-current control using MATLAB/Simulink Software.

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